太陽系における高速度衝突現象と惑星の起源と進化  [in Japanese] High-Velocity Impact Phenomena in the Solar System Related to the Origin and Evolution of Planets  [in Japanese]

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Author(s)

    • 荒川 政彦 ARAKAWA Masahiko
    • 神戸大学大学院 理学研究科 地球惑星科学専攻 Department of Earth and Planetary Sciences, Faculty of Science, Kobe University
    • 保井 みなみ YASUI Minami
    • 神戸大学 自然科学系先端融合研究環重点研究部 Organization of Advanced Science and Technology, Kobe University

Abstract

In this article, recent studies on impact cratering and impact disruption of planetary bodies are reviewed. A widely accepted scaling law for impact cratering is introduced to discuss the effects of material strength and planetary gravity on the crater formation process. A sophisticated scaling law for impact disruption is also introduced and we notice that non-dimensional impact stress is useful parameter to describe the catastrophic disruption. The impact strength of icy bodies, meteorite parent bodies and primitive asteroids are studied by using various materials simulating them, and these results are explained briefly.<br>

Journal

  • The Review of High Pressure Science and Technology

    The Review of High Pressure Science and Technology 24(1), 13-20, 2014

    The Japan Society of High Pressure Science and Technology

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